Pontiac Repair: car trouble, coolant level, pontiac montana

Question
i have a question about my 99 pontiac montana. I need to know why would my low coolant light keep on flashing when the car is full of water. need to know.I  appreciate your help.

Answer
hi Tamika:

if the radiator is full and the lamp keeps comming on or chances are the coolant level sensor inside the radiator is bad. this was a pretty common issue with these vans. it's attaches to the radiator about 3" below the filler cap it has a wire connector on it and a spring clip that attaches it to the radiator. doof luck :)